Unexpected status or error status BEGIN:VCALENDAR

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When I try to add my office online calendar feed I am getting a status error telling and returning the first line of the feed (BEGIN:VCALENDAR).

A snippet of my feed:

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//My calendar product//ical.domain.com//
BEGIN:VEVENT
SUMMARY:VC:Plan van aanpak vertrouwelijke mails 
DTSTART;VALUE=DATE-TIME:20160615T110000
DTEND;VALUE=DATE-TIME:20160615T113000
LOCATION:ELBE.G143
END:VEVENT
BEGIN:VEVENT
SUMMARY:Drupal ombuds briefing
DTSTART;VALUE=DATE-TIME:20160615T113000
DTEND;VALUE=DATE-TIME:20160615T120000
LOCATION:ELBE.G075
END:VEVENT
BEGIN:VEVENT
SUMMARY:Team Meeting 
DTSTART;VALUE=DATE-TIME:20160615T130000
DTEND;VALUE=DATE-TIME:20160615T140000
LOCATION:ELBE.G075
END:VEVENT

Are you sure this is what your calendar data looks like ? This snippet seems not helpful at all.

Your VCALENDAR misses an END:VCALENDAR, your EVENT misses an UID: and DTSTAMP: … (see: RFC5545 )

@kralo
The snippet I provided was not complete.
This is the full result I am getting into my browser (chrome) once I fill in the credentials.

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//My calendar product//ical.colruytgroup.com//
BEGIN:VEVENT
SUMMARY:Later in
DTSTART;VALUE=DATE-TIME:20160613T083000
DTEND;VALUE=DATE-TIME:20160613T100000
LOCATION:ext
END:VEVENT
BEGIN:VEVENT
SUMMARY:VC:Plan van aanpak vertrouwelijke mails DATS24
DTSTART;VALUE=DATE-TIME:20160615T110000
DTEND;VALUE=DATE-TIME:20160615T113000
LOCATION:ELBE.G143
END:VEVENT
BEGIN:VEVENT
SUMMARY:Drupal ombuds briefing
DTSTART;VALUE=DATE-TIME:20160615T113000
DTEND;VALUE=DATE-TIME:20160615T120000
LOCATION:ELBE.G075
END:VEVENT
BEGIN:VEVENT
SUMMARY:Team Meeting colruyt.be
DTSTART;VALUE=DATE-TIME:20160615T130000
DTEND;VALUE=DATE-TIME:20160615T140000
LOCATION:ELBE.G075
END:VEVENT
BEGIN:VEVENT
SUMMARY:VC :Drupal briefing
DTSTART;VALUE=DATE-TIME:20160621T140000
DTEND;VALUE=DATE-TIME:20160621T150000
LOCATION:ELBE.5.G795
END:VEVENT
BEGIN:VEVENT
SUMMARY:Team Meeting colruyt.be
DTSTART;VALUE=DATE-TIME:20160624T110000
DTEND;VALUE=DATE-TIME:20160624T120000
LOCATION:ELBE.5.G795
END:VEVENT
BEGIN:VEVENT
SUMMARY:Drupal ombuds briefing
DTSTART;VALUE=DATE-TIME:20160628T143000
DTEND;VALUE=DATE-TIME:20160628T150000
LOCATION:ELBE.5.G795
END:VEVENT
BEGIN:VEVENT
SUMMARY:VC :Drupal briefing
DTSTART;VALUE=DATE-TIME:20160630T100000
DTEND;VALUE=DATE-TIME:20160630T110000
LOCATION:ELBE.5.G795
END:VEVENT
BEGIN:VEVENT
SUMMARY:Teammeeting
DTSTART;VALUE=DATE-TIME:20160630T110000
DTEND;VALUE=DATE-TIME:20160630T120000
LOCATION:ELBE.G025
END:VEVENT
BEGIN:VEVENT
SUMMARY:CARA meeting E-factory (1m)
DTSTART;VALUE=DATE-TIME:20160630T160000
DTEND;VALUE=DATE-TIME:20160630T170000
LOCATION:Kantine Elbe
END:VEVENT
BEGIN:VEVENT
SUMMARY:Team Meeting colruyt.be
DTSTART;VALUE=DATE-TIME:20160701T130000
DTEND;VALUE=DATE-TIME:20160701T140000
LOCATION:ELBE.5.G795
END:VEVENT
BEGIN:VEVENT
SUMMARY:Verplaatsing
DTSTART;VALUE=DATE-TIME:20160705T120000
DTEND;VALUE=DATE-TIME:20160705T121500
LOCATION:Extb
END:VEVENT
BEGIN:VEVENT
SUMMARY:proefsessie hellebroek (do not replace)
DTSTART;VALUE=DATE-TIME:20160705T121500
DTEND;VALUE=DATE-TIME:20160705T124500
LOCATION:HELK.1.2007
END:VEVENT
BEGIN:VEVENT
SUMMARY:Verplaatsing
DTSTART;VALUE=DATE-TIME:20160705T124500
DTEND;VALUE=DATE-TIME:20160705T130000
LOCATION:Extb
END:VEVENT
BEGIN:VEVENT
SUMMARY:Team Meeting colruyt.be
DTSTART;VALUE=DATE-TIME:20160707T110000
DTEND;VALUE=DATE-TIME:20160707T120000
LOCATION:ELBE.G075
END:VEVENT
BEGIN:VEVENT
SUMMARY:Keep free
DTSTART;VALUE=DATE-TIME:20160707T120000
DTEND;VALUE=DATE-TIME:20160707T180000
LOCATION:ext
END:VEVENT
BEGIN:VEVENT
SUMMARY:Drupal ombuds briefing
DTSTART;VALUE=DATE-TIME:20160712T143000
DTEND;VALUE=DATE-TIME:20160712T150000
LOCATION:ELBE.G075
END:VEVENT
END:VCALENDAR

UID and DTSTAMP are like you say missing. Is it because of that that the import doesn’t succeed?

UID and DTSTAMP are like you say missing. Is it because of that that the import doesn’t succeed?

Not necessarily. Although your calendar is formally invalid, icsdroid does import the text you have posted on my device without problems.

So my next guess would be the server HTTP status code. Is it correctly returning 200 OK if you verify in Chrome (Developer Tools - Networking? )

@kralo

Yes status is 200

Request URL:https://ical.colruytgroup.com/calendar
Request Method:GET
Status Code:200 OK
Remote Address:91.231.109.191:443
Request Headers

Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Encoding:gzip, deflate, sdch, br
Accept-Language:fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4,nl;q=0.2
Authorization:Basic bXN0djI5NzowNW1hc3lraQ==
Connection:keep-alive
Host:ical.colruytgroup.com
Upgrade-Insecure-Requests:1
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36
Name
Path
calendar

Please enclose code or similar blocks with ```.

Can you provide steps to reproduce, including an URL/credentials where we can reproduce the problem?

@rfc2822,

Thanks for your tip about the code.

I can provide you the URL and the credentials but not here. It has to be handled as confidential.
Can I give you these in a private message?

Thanks, regards,
Michel.

@MS-Informatique Yes, you can send it as private message or email to play@bitfire.at (OpenPGP key on the bottom of icsdroid.bitfire.at).

Hello,

Thanks for the credentials. The server doesn’t like requests sent using curl: In this case, the server responds with The requested URL was rejected. Please consult with your administrator. Your support ID is: 14255903059298974973. However, that’s not your problem.

It seems like the server doesn’t send a correct HTTP response. There’s no status line, but only the message body:

> GET /calendar HTTP/1.1
> Host: …
> Authorization: Basic …
> Accept: */*
> User-Agent: ICSdroid
BEGIN:VCALENDAR
…

This causes clients to interpret the first body line as the status line, thus the error message “Unexpected status: BEGIN:VCALENDAR” (BEGIN:VCALENDAR is the first line of the body).

So, this is a severe server error: the server doesn’t speak HTTP.

There’s probably some kind of script at this URL and printing the HTTP status line has been forgotten in this script. Please contact your server admin with reference to this forum thread.

@rfc2822

Thanks for your reply. Now the problem is clear.
I will handle this with the server admin.

Have a nice day!

Best regards,
Michel.

@MS-Informatique I hope that it helps. If the problem could be solved that way, it would be nice if you could confirm it here so that I know whether my guess was correct.